EP1679338A4 - MICROPOROUS POLYOLEFIN FILM - Google Patents

MICROPOROUS POLYOLEFIN FILM

Info

Publication number
EP1679338A4
EP1679338A4 EP20040787946 EP04787946A EP1679338A4 EP 1679338 A4 EP1679338 A4 EP 1679338A4 EP 20040787946 EP20040787946 EP 20040787946 EP 04787946 A EP04787946 A EP 04787946A EP 1679338 A4 EP1679338 A4 EP 1679338A4
Authority
EP
European Patent Office
Prior art keywords
film
microporous polyolefin
polyolefin film
polyethylene
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20040787946
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1679338A1 (en
EP1679338B1 (en
Inventor
Daisuke Inagaki
Takahiko Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Chemicals Corp
Original Assignee
Asahi Kasei Chemicals Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Chemicals Corp filed Critical Asahi Kasei Chemicals Corp
Publication of EP1679338A1 publication Critical patent/EP1679338A1/en
Publication of EP1679338A4 publication Critical patent/EP1679338A4/en
Application granted granted Critical
Publication of EP1679338B1 publication Critical patent/EP1679338B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethylene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491—Porosity
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/05—Open cells, i.e. more than 50% of the pores are open
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Cell Separators (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A microporous polyolefin film which comprises 5 to 95 wt.% polyethylene (A) having a viscosity-average molecular weight (Mv) of 2,000,000 or higher, a first-melting-peak signal height as determined by DSC (differential scanning calorimetry) of 3.0 mW/mg or higher, a specific surface area of 0.7 m2/g or larger, and an average particle diameter of 1 to 150 μm and 95 to 5 wt.% polyethylene (B) having an Mw of 10,000 to 200,000, excluding 10,000 and 200,000, wherein the ratio of the Mv of the compound (A) to that of the compound (B), (A)/(B), is 10 or higher, the film as a whole has a molecular weight of 300,000 to 1,500,000, and the film has a fuse temperature of 120 to 140°C, a breaking temperature of 150°C or higher, and a ratio of the piercing strength at 25°C to the piercing strength at 140°C of from 0.01 to 0.25.
EP04787946.5A 2003-10-27 2004-09-21 Microporous polyolefin film Expired - Lifetime EP1679338B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003366601 2003-10-27
PCT/JP2004/013763 WO2005040258A1 (en) 2003-10-27 2004-09-21 Microporous polyolefin film

Publications (3)

Publication Number Publication Date
EP1679338A1 EP1679338A1 (en) 2006-07-12
EP1679338A4 true EP1679338A4 (en) 2007-01-03
EP1679338B1 EP1679338B1 (en) 2016-04-06

Family

ID=34510247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787946.5A Expired - Lifetime EP1679338B1 (en) 2003-10-27 2004-09-21 Microporous polyolefin film

Country Status (7)

Country Link
US (2) US20070015876A1 (en)
EP (1) EP1679338B1 (en)
JP (1) JP4799179B2 (en)
KR (1) KR100780523B1 (en)
CN (1) CN100460453C (en)
TW (1) TWI298338B (en)
WO (1) WO2005040258A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5191113B2 (en) * 2005-09-27 2013-04-24 旭化成ケミカルズ株式会社 Ethylene polymer composition powder
JP5216327B2 (en) * 2005-12-15 2013-06-19 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane
CN100532442C (en) * 2007-01-19 2009-08-26 华南理工大学 Cross-blending material of high density polythene and superhigh molecular weight polythene and its preparation method and uses
ATE538167T1 (en) * 2007-01-30 2012-01-15 Asahi Kasei E Materials Corp MICROPOROUS POLYOLEFIN MEMBRANE
JP4733232B2 (en) 2008-03-31 2011-07-27 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane and wound product
JP5572334B2 (en) 2008-05-30 2014-08-13 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane
KR101607658B1 (en) * 2012-01-26 2016-03-30 주식회사 엘지화학 Preparing method of microporous polyolefin film by thermally-induced phase separation method
KR102553501B1 (en) * 2015-06-05 2023-07-10 도레이 카부시키가이샤 Microporous membrane manufacturing method, microporous membrane, battery separator and secondary battery
CN107452919B (en) 2016-06-01 2020-08-28 上海恩捷新材料科技有限公司 High-wettability isolating membrane and preparation method and application thereof
JP6383479B1 (en) * 2017-02-24 2018-08-29 旭化成株式会社 Ethylene polymer and molded body
JP7283080B2 (en) * 2017-09-27 2023-05-30 東レ株式会社 Polyolefin microporous membrane, battery separator and secondary battery
DE102019112089A1 (en) * 2019-05-09 2020-11-12 Brückner Maschinenbau GmbH & Co. KG Film with at least two layers and method for their manufacture
WO2020256138A1 (en) 2019-06-21 2020-12-24 旭化成株式会社 Polyolefin microporous membrane
EP4001348A1 (en) * 2020-11-20 2022-05-25 Toray Industries, Inc. Polyolefin microporous membrane, battery separator, and secondary battery
CN115458867A (en) * 2022-10-28 2022-12-09 乐凯胶片股份有限公司 Polyolefin diaphragm and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603500A1 (en) * 1992-12-21 1994-06-29 Mitsubishi Chemical Corporation Porous film or sheet, battery separator and lithium battery
EP1614710A1 (en) * 2003-03-24 2006-01-11 Asahi Kasei Chemicals Corporation Microporous polyethylene film

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221559A (en) 1988-07-08 1990-01-24 Nitto Denko Corp Separator for battery and manufacture thereof
JP2711633B2 (en) 1994-06-20 1998-02-10 東燃株式会社 Method for producing microporous polyolefin membrane
JPH08244152A (en) * 1995-03-15 1996-09-24 Nitto Denko Corp Porous film and method for producing the same
JP3351940B2 (en) 1995-09-26 2002-12-03 東燃化学株式会社 Method for producing microporous polyolefin membrane
US5948557A (en) * 1996-10-18 1999-09-07 Ppg Industries, Inc. Very thin microporous material
JPH11130899A (en) 1997-10-27 1999-05-18 Asahi Chem Ind Co Ltd Finely porous polyethylene membrane
WO1999048959A1 (en) * 1998-03-24 1999-09-30 Asahi Kasei Kogyo Kabushiki Kaisha Microporous polyolefin film
CN1134491C (en) * 1999-02-19 2004-01-14 东燃化学株式会社 Polyolefin microporous film and method for preparing same
JP4206182B2 (en) 1999-12-27 2009-01-07 日東電工株式会社 Microporous film
JP5031150B2 (en) * 2001-06-08 2012-09-19 旭化成イーマテリアルズ株式会社 Polyolefin separator
JP4746771B2 (en) 2001-06-19 2011-08-10 東レ東燃機能膜合同会社 Method for producing polyolefin microporous membrane
JP4794099B2 (en) * 2001-09-28 2011-10-12 東レ東燃機能膜合同会社 Method for producing polyolefin microporous membrane
JP4310424B2 (en) 2002-01-24 2009-08-12 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane for battery separator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603500A1 (en) * 1992-12-21 1994-06-29 Mitsubishi Chemical Corporation Porous film or sheet, battery separator and lithium battery
EP1614710A1 (en) * 2003-03-24 2006-01-11 Asahi Kasei Chemicals Corporation Microporous polyethylene film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005040258A1 *

Also Published As

Publication number Publication date
KR100780523B1 (en) 2007-11-30
US20080290552A1 (en) 2008-11-27
US7700025B2 (en) 2010-04-20
WO2005040258A1 (en) 2005-05-06
TWI298338B (en) 2008-07-01
EP1679338A1 (en) 2006-07-12
US20070015876A1 (en) 2007-01-18
JP4799179B2 (en) 2011-10-26
CN1875058A (en) 2006-12-06
EP1679338B1 (en) 2016-04-06
KR20060065734A (en) 2006-06-14
CN100460453C (en) 2009-02-11
TW200514814A (en) 2005-05-01
JPWO2005040258A1 (en) 2007-11-22

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